@Snarp, exactly. The terminal security is always a Maginot Line: effective against “the previous attack”. We seem to forget that from the earliest hijackings of passenger airliners in the 70s, until 2001, they were for one purpose only: diversion of the aircraft for political or criminal (monetary payoff) ends.
So we started screening for hand-held weapons that could be used as a threat to take over and divert the planes. (And that broke down frequently, but spectacularly so on 11 September 2001.) Then we decided “no more boxcutters, metal knives in meals—about the time the airlines more or less decided to do away with meals, too, come to think of it—and fingernail clippers. My god—fingernail clippers? Were they serious?
Then some idiot tries to bomb a plane with something he built into his shoe, and now it doesn’t even matter if you’re wearing sandals, you need to take them off so that “we need to be sure your shoe isn’t a bomb”. And some clown puts it in his underwear. Carried to their logical conclusion, the new rules should have us take off our underwear for inspection.
But they can’t see what I had for dinner before I left for the airport, can they? How soon before we need to purge ourselves before boarding the plane because the next idiot thinks about a way to swallow a dangerous / explosive device?
The new rules are a joke—and an insult to anyone with intelligence. (Fortunately for the airlines and the TSA, this excludes most of the passengers and voters who approve of this nonsense.) If I wanted to take down a plane I’d do it from outside the airport’s security fence in the first place.
I flew in Indonesia a couple of years ago where they have all of the screening equipment and “rules” available that we do—and no one pays attention at the local airports. Alarms squawk all the time as people walk through them—and they keep right on going without challenge. I was behind one passenger who pulled a handgun from his pocket before he went through the metal detector, and put it into a basket to pass around the detector. He walked through and didn’t set off the alarm, naturally. The security guard handed him the basket with the pistol, and he put it back into his pocket and proceeded to the boarding area. (No overt identification was presented, such as a badge or an ID card.)
At least they seem to be more honest about things there.